Skip to main content

Network Load Balancing in Windows 2008 Server R2

Windows 2008 Server R2 provides software level support for the network load balancing of various servers like Web Server, Print Server, Database Server etc. The feature of multicast communication has to be resolved by putting an arp entry into the router/switch which ever we are using. The ping to the Virtual IP will not happen by default, unless we put the physical address of the Virtual IP as a static entry in the arp table of the router/switch.

Comments

Post a Comment

Popular posts from this blog

Connecting Nodejs to SQL Server with Knex ORM - Part 1

Normally we connect Nodejs to the databases like SQLite, MongoDB, Postgres etc . In this multiple part post, I am going to show you, how we can connect Nodejs with Microsoft's SQL Server using Knex and run CRUD operations. 1. Installation of required packages In order to connect Nodejs to SQL Server with Knex, we will need following node packages installation: i. npm install knex ii. npm install mssql Once the packages are installed, we can write the following code to connect: //Code to KNEX connection settings. var knex = require('knex')({ client: 'mssql', connection: { user: 'sa', password: 'pwd', server: 'localhost', database: 'Test' } }); //Code to query the Table DEPT knex.select("*").from("dept") .then(function (depts){ depts.forEach((dept)=>{ //use of Arrow Function console.log({...dept}); }); }).catch(function(err) { ...
Post a Comment
Read more

SQLServer Error: 15404, Could not obtain information about Windows NT group/user Error code 0x5. [SQLSTATE 42000] (ConnIsLoginSysAdmin)

If we encounter this error "SQLServer Error: 15404, Could not obtain information about Windows NT group/user Error code 0x5. [SQLSTATE 42000] (ConnIsLoginSysAdmin)" in SQL Server in which the job fails because of the user account related problem, then we need to take the following steps to make it work: a. Go to SQL Server Agent. b. Then select the job which is giving error and not running successfully. c. Then choose properties and in the General Tab, change the owner to "SA" or any account that has the administrative privileges. The problem will be resolved.
1 comment
Read more

MAX pool size reached in ASP.NET

If you are handling large databases and big application(s) that are running on servers in a cluster, then probably this error might have occurred. In an ASP.NET app, we can use connection pooling that helps to share the connection between multiple request(s) rather than creating more connections. The settings relating to connection pool are defined in web.config file. Max pool size reached error in ASP.NET occurs, when the number of connections go beyond the maximum defined limit in Web.config file. Following are the various settings of the Connection Pooling: Name Default Description Connection Lifetime 0 When a connection is returned to the pool, its creation time is compared with the current time, and the connection is destroyed if that time span (in seconds) exceeds the value specified by  Connection Lifetime . This is useful in clustered configurations to force load balancing between a runnin...
Post a Comment
Read more